[Graham Harris]

Sorry! It’s been a long day, I realised I had hard coded the time to a single variable so the expression is unable to count up or down. I altered the expression as below and it appears to do what I want, at least I can render it out and then reverse it in premiere to do what I want. Thanks again for your help Andrei.

countspeed = 100;
clockStart = 31102010;

function times(n){
if (n < 10) return "0" + n else return "" + n
}

clockTime = clockStart +countspeed*(time - inPoint);

if (clockTime < 0){
minus = "-";
clockTime = -clockTime;
}else{
minus = "";
}

totalTimeInSeconds=clockTime
;

secondsPerMinute = 60;
secondsPerHour = 60 * 60;
secondsPerDay = 60 * 60 * 24;
secondsPerMonth = 60 * 60 * 24 * 30;
secondsPerYear = 60 * 60 * 24 * 30 * 12;

secondsRemaining = totalTimeInSeconds;

years = Math.floor(secondsRemaining / secondsPerYear);
secondsRemaining = secondsRemaining % secondsPerYear;

months = Math.floor(secondsRemaining / secondsPerMonth);
secondsRemaining = secondsRemaining % secondsPerMonth ;

days = Math.floor(secondsRemaining / secondsPerDay);
secondsRemaining = secondsRemaining % secondsPerDay ;

hours = Math.floor(secondsRemaining / secondsPerHour);
secondsRemaining = secondsRemaining % secondsPerHour;

minutes = Math.floor(secondsRemaining / secondsPerMinute);
secondsRemaining = secondsRemaining % secondsPerMinute ;

seconds = secondsRemaining;

txt = "";
txt += yearleadingZeros(years);
txt += leadingZeros(months);
txt += leadingZeros(days);
txt += leadingZeros(hours);
txt += leadingZeros(minutes);
txt += leadingZeros(seconds);

txt;

function yearleadingZeros(i){
x = "0" + Math.floor(i);
return x;

}

function leadingZeros(i){
x = "0" + Math.floor(i);
x = ":" + x.substr(x.length-2, 2);
return x;

}

[Graham Harris]

Thanks Andrei, I really appreciate you taking the time to look at this. It now displays numbers instead of NA! Unfortunately it doesn’t count down when I run it. Would you have any idea why that is?